Permutation-lock.



F. C. ECKELMAN.

PERMUTATION LOCK.

APPLICATION FILED MAR. 7. 1916.

,2 l 4,44 l Patented Jan. 30, 1917.

lll V4'. I

kaum/Mofo, I

FREDRICK C. ECKELMAN, F NEW YORK, N. Y.

PERMUTATION-LOCK.

Specification of Letters Patent.

Patented Jan. 30, 119i?.

Application led March 7, 1916. Serial No. 82,775'.

T 0 all whom z't may concern:

Be it known that I, Fnnmncn (l. lilonnrf MAN, a citizen of the United States, residing at New York city, in the county of New York and State of Newy York, have invented new and useful improvements in Permutation-Locks, of which the following is a specification.

This invent-ion relates to permutation locks and particularly to an improvement in the lock shown in my copending application filed June 25th, 1915, Serial No. 36,370.

The lock mechanism is designed primarily but not exclusively to be used in connection with automobiles or similar vehicles for the purpose of preventing the use of the machine by an unauthorized person. l have provided herein a simple mechanism which is positive in operation and fully effective for the purpose and adapted to be connected with the usual manually operated device of head-light, battery and magneto operating mechanism so that at the desire of the user, the head-light may be cut oif or thrown on or dimmed as the occasion may necessitate,

acting locking elements are released from the mating locking bar. In this manner, there is no occasion for permitting one, other than the authorized person to become actually familiar with the numbers of the combination which are necessary to be known in order that the device may be properly operated.

With the above and other objects in view which will appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangements of parts which will hereinafter be fully described and particularly pointed out in the claims.

ln the accompanying drawings, has been illustrated, a single and preferred form of the invention, it being, however, understood, that no limitations is necessarily made to the precise structural details therein cxhibited, but that changes, alterations and modifications Within the scope of the claims may be resorted to when desired.

in the drawings r-Figure 1 is a side. view of the lock. Fig. 2 is a vertical longitmlinal section therethrough, with parts in elevation. Fig. 3, is a horizontal section through the casing, showing the revolving tumblors in full lines. the line i-ft of Fig. 2. Fig. is a front elevation of thc operating shaft and the comu bination dials. Fig. 6 is a fragmentary pci'- spective view of the tumble-rs.

The lock mechanism, as previously stated, is adapted to -he connected with the usual manually controlled device which is employed for the purpose of turning the headlights on or off and fordimming the lights at the. will of the operator and the vlock mechanism is further adapted to be connected with the usual controlling device for changing the electric circuit from the magneto to the battery.

In practice, I employ a casing 1, having a rocker shaft 2, and a similar rocker shaft 3. These shafts may be connected in any suitable well known manner with the mechanical mechanism for controlling the lights, ythe magneto and the battery and as the lock mechanism, to be hereinafter described, is only intended to affect conditions of the shafts 2 and 3, no detail explanation of the manner of connecting the shafts with Fig. 4 is a section taken on the light, battery and magneto controlling A means will be described. However, it will be briefly stated, that the shaft 2, which is adapted torbe rocked or oscillated, is pro-y vided with a fixed lug or collar 4, having 'a plurality of fiat faces 5, 6 and 7, which' correspond with an equal number of indications such as the indicia Head,7 501i, and Dim, arranged at one side of the'casing 1, as shown in Fig. 1. The said shaft 2, is further provided with a manually operated pointer 8, which is adapted to co-act with the just mentioned indications so that the operator may turn the lights on or off or dim the same as the occasion rmay demand.

The rocker shaft 8, is provided with a single flat surface 9` which is adapted to co-.act with a fixed lug 10, on a sliding locking bar 11. This shaft is also provided with a.

pointer 12, adapted to lco-act with indications such `as the indicia Bat, 011, and

Mag, so that the electric circuit may bev connected,.either with the battery or magneto.

The sliding locking bar 11, finds a bearing or guide at 12, in one end of the casing 1. Exteriorly of the casing, said bar is provided with a suitable handle 13. Interiorly of the casing, the bar is provided. with a recess 14, adapted to be brought into registration with the lug 4, so as to permit the shaft 2,`to be turned or oscillated. At the inner end, the bar is provided With a fixed locking extension 15, adapted to be projected into recesses 16 and 17, formed respectively in rotary tumblers 18 and 19, the former being fitted to a shaft 20, which is mounted to revolve in the casing 1. The tumbler 19, is free upon the shaft 20, and is adapted to be revolved b -a dail 21, the peripheral portion of whic being vextended beyond the casing as at 22, so that it may be conveniently manipulated. A second dial 23, 1s fitted `to the shaft 20, and for the purpose of compactness, said second dial is countersunk in the dial 21. Both of these dials operate at the back of a display opening 24, formed in the casing 1, at one side thereof.

The Walls of the display opening are p rovided with alined fixed polnters 25 and 26,

to be hereinafter referred to.

for a purpose 19, is provlded along one side The tumbler `with an annular series of serrations 27,

which co-act with simi-lar serrations 28, at one side of the'dial 21. The tumbler 18, is provided with-a like set of serrations 29, which co-act with serrations 30, on one side of a locking device 31. This device is keyed to rotate with the shaft 20, but it is free to slide in a longitudinal direction thereon. ,The shaft 20, is threaded at 32, and adjustably connected with the thread is a nut 33. This nut, when adjusted to the position shown in Fig. 4, operates to hold all of the co-acting sets of teeth upon the mentioned elements of the lock in co-acting engagement With each other. The construction, as Will be observed, is such that the dial 21, may be rotated when the shaft 20, is turned and when effecting such operation, the tumbler 18, will of course, be rotated with the mentioned element 31. The tumbler 19, of course, is adapted to revolve about the shaft 20, when the dial 21, is turned.

The recesses 16 and 17 of the mating tumblers 18 and 19, can be brought into the same horizontal alinement with each other by revolving the shaft 20, and the dial 21, and said vrecesses may also be brought into horizontal alinement with the extension 15, of the slidin locking bar 11.

Normal y, the extension 15, is arranged in the position shown in Fig. 2. The pointers 8 and 12, are then in neutral or cutolf positions. The extension 1.0, is in contact ,with Athe surface 9 of the shaft 3. The under face of the bar 11, is in contact with the central surface 6, of the lug 4. As a consequence of this construction, the bar 11, can not be moved, it of course being understood, that the dials have been previously turned so as to bring -their recesses 16 and 17,

out of alinement with eachother and also out of alinement with the extension 15.

The dials are numbered or provided with any suitable indicating matter thereon, which may be displayed from the opening 24, in the casing. In view of the fact that I do not Wish to expose'the numbers forming the selected combination to the View of unauthorized persons, each dial is graduated between its numbers and on reference to Fig. 1, it will be seen that the numbers forming the combination, which, in this instance, are the number 4 on the dial 21, and the number 1, on the dial 23, are positioned immediately at the right of the opening 24, with certain graduations to the left of these numbers alined with each other and'with the pointers 25`and 26. It is the alinement of known graduations with the pointers 25 and 26 that of course will permit of the actual concealment of the combination numbers beyond the display 'opening The peripheral surface of the tumblers 18 and 19 are preferably serrated at 34 and these surfaces are adapted to pass over the points of reduced ends 35 of the extension 15.

The outer end of the shaft 20 is provided with asuitable manipulating knob 36. The

casing is provided with a swinging section 21 and 31. The swinging section 37 carries a shoulder 38, which is adapted to engage behind a tilting hook 39. This hook includes a pin 40, which is mounted to slide in the upper wall of the casing. A. button or head 41, is secured to the outer end of the pin and interposed between the button and the casing is a spring 42, which operates to normally hold the latch 39, engaged with the keeper shoulder 38. When the sliding bar 11, is in the position shown in Fig. 2, it may be projected into the alined slots 16 and 17. The oscillating shafts 2 and 3, are then released and they may be turned so as to cause the pointers 8 and 12, to be set to the requisite points upon the indicating surfaces of the casing. It is also described, that at such time, the pin 40 may be projected into a recess 43, in the sliding bar 11 and the latch nemesi 39, is then released. |The section 37 may loe swung to an open position and access may then be had to the structure.

l claim:

l. A loekncomprising a casing, a closure hinged thereto, a latch pivoted in the casing and engageable With the closure to hold the same in a closed position, tumblers movably mounted in the casing, a bar movably mounted in the casing for coperation with the tumblers, and having a recess, and a pin movably mounted in the casing and engaging the latch and the bar and movable into the recess when the bar is moved into the tumblers to move the latch to release the Closure.

2. A. lock comprising a casing, tumblers movably mounted therein, a bar movably .mounted in the casing for coperation with the tumblers and having a recess and a lug turnably mounted in the casing and having a plurality of Hat edges each of which is engageable with the bar, the said recess in the bar adapted to receive a portion of the lug during the turning movement thereof.

ln testimony whereof I, aflix my signature in presence of two Witnesses.

LEO C. KELLER, SAUL KELLER. 

